Toyota Sequoia (2005). Manual - part 351

H01007

H10600 H40997

H24650

CG

TC

DTC B1635/24

DLC3

Curtain Shield Airbag 

Sensor Assembly LH

Airbag 
Sensor 
Assembly

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1199

1393

INSPECTION PROCEDURE

CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag de-
ployment.
(a)

Turn the ignition switch to the LOCK position.

(b)

Disconnect the negative (–) terminal cable from the battery, and wait for at least 90 seconds.

(c)

Disconnect the connectors from the airbag sensor assembly.

(d)

Disconnect the connectors from the steering wheel pad.

(e)

Disconnect the connectors from the front passenger airbag assembly.

(f)

w/ Side and curtain shield airbag:
Disconnect the connectors from the side airbag assembly LH and RH.

(g)

w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH and RH.

(h)

Disconnect the connectors from the front seat outer belt LH and RH.

1

Check DTC.

PREPARATION:
(a)

Connect the connectors to the airbag sensor assembly.

(b)

Connect the negative (–) terminal cable to the battery,
and wait for at least 2 seconds.

CHECK:
(a)

Turn the ignition switch to the ON position, and wait for at
least 60 seconds.

(b)

Clear the DTCs stored in memory (see page 

DI–1147

).

(c)

Turn the ignition switch to the LOCK position.

(d)

Turn the ignition switch to the ON position, and wait for at
least  60 seconds.

(e)

Check the DTCs (see page 

DI–1147

).

OK:

DTC B1635/24 is not output.

HINT:
Codes other than DTC B1635/24 may be output at this time, but
they are not related to this check.

NG

Go to step 2.

OK

From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check (see page 

DI–1137

).

C91384

H01010

G27652

H23575

Curtain Shield

Airbag Sensor 

Assembly LH

Floor Wire No. 2

Airbag 

Sensor 

Assembly

VUCL

ESCL

A

B

C

D

VUCL

ESCL

SST

A19

S26

DI–1200

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1394

2

Check connection of connectors.

PREPARATION:
(a)

Turn the ignition switch to the LOCK position.

(b)

Disconnect the negative (–) terminal cable from the battery, and wait for at least 90 seconds.

CHECK:
Check that the connectors are properly connected to the airbag sensor assembly and the curtain shield air-
bag sensor assembly LH.
OK:

The connectors are connected securely.

NG

Connect connectors, then go to step 1.

OK

3

Check floor wire No. 2 (open).

PREPARATION:
(a)

Disconnect the connectors from the airbag sensor as-
sembly and the curtain shield airbag sensor assembly LH.

(b)

Using SST, connect S26–2 (VUCL) and S26–1 (ESCL) of
connector ”C”.
SST

09843–18040

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

A19–20 (VUCL) – 

A19–22 (ESCL)

Always

Below 1 

Ω

NG

Repair or replace floor wire No. 2.

OK

C91384

H01010

G27652

H23572

Curtain Shield

Airbag Sensor 

Assembly LH

Floor Wire No. 2

Airbag 

Sensor 

Assembly

VUCL

ESCL

A

B

C

D

A19

C91384

H01010

G27652

H23572

Curtain Shield

Airbag Sensor 

Assembly LH

Floor Wire No. 2

Airbag 

Sensor 

Assembly

VUCL

ESCL

A

B

C

D

A19

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

DI–1201

1395

4

Check floor wire No. 2 (short).

PREPARATION:
Disconnect the SST from connector ”C”.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

A19–20 (VUCL)  – 

A19–22 (ESCL)

Always

1 M

Ω

 or higher

NG 

Repair or replace floor wire No. 2.

OK

5

Check floor wire No. 2 (short to B+).

PREPARATION:
(a)

Connect the negative (–) terminal cable to the battery,
and wait for at least 2 seconds.

CHECK:
(a)

Turn the ignition switch to the ON position.

(b)

Measure the voltage according to the value(s) in the table
below.

OK:

Tester Connection

Condition

Specified Condition

A19–20 (VUCL) –

Body ground

Ignition switch ON

Below 1 V

A19–22 (ESCL) – 

Body ground

Ignition switch ON

Below 1 V

NG 

Repair or replace floor wire No. 2.

OK

C91384

H01010

G27652

H23572

Curtain Shield

Airbag Sensor 

Assembly LH

Floor Wire No. 2

Airbag 

Sensor 

Assembly

VUCL

ESCL

A

B

C

D

A19

DI–1202

–

DIAGNOSTICS

SUPPLEMENTAL RESTRAINT SYSTEM

1396

6

Check floor wire No. 2 (short to ground).

PREPARATION:
(a)

Turn the ignition switch to the LOCK position.

(b)

Disconnect the negative (–) terminal cable from the bat-
tery, and wait for at least 90 seconds.

CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:

Tester Connection

Condition

Specified Condition

A19–20 (VUCL) – 

Body ground

Always

1 M

Ω

 or higher

A19–22 (ESCL) – 

Body ground

Always

1 M

Ω

 or higher

NG

Repair or replace floor wire No. 2.

OK